[PATCH v10 1/3] dt-bindings: pwm: Add binding for Allwinner D1/T113-S3/R329 PWM controller

[Александр Шубин]

Hello Uwe,

I appreciate your suggestion to use a more standardized
property name like "pwm-number" instead of vendor-specific names.

Since the name "pwm-number" is present in two drivers,
we could consider using this name here as an option.
Or perhaps we should choose a new common name "npwms"
as you suggested?

Please let me know what you think about this.

Best regards,
Aleksandr.

вт, 29 окт. 2024 г. в 11:56, Uwe Kleine-König <u.kleine-koenig at baylibre.com>:
>
> Hello,
>
> On Fri, Oct 11, 2024 at 01:27:32PM +0300, Aleksandr Shubin wrote:
> > +  allwinner,pwm-channels:
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +    description: The number of PWM channels configured for this instance
> > +    enum: [6, 9]
>
> I wonder if the number of channels is a property common enough that we
> can use "num-pwm-channels" here instead of a vendor specific property.
> Or would you suggest a different name? gpio-controller nodes have
> "ngpios", so maybe "npwms"?
>
> A quick grep suggests we already have:
>
>         fsl,pwm-number in mxs-pwm.yaml
>         st,pwm-num-chan in pwm-st.txt
>         snps,pwm-number in snps,dw-apb-timers-pwm2.yaml
>
> As a follow up this could then be used by pwmchip_alloc() to determine
> the number of channels if the passed npwm value is 0.
>
> Best regards
> Uwe